chenkovsky commented on code in PR #17367:
URL: https://github.com/apache/datafusion/pull/17367#discussion_r2366203345
##########
datafusion/sql/src/unparser/dialect.rs:
##########
@@ -267,6 +274,14 @@ impl Dialect for DefaultDialect {
pub struct PostgreSqlDialect {}
impl Dialect for PostgreSqlDialect {
+ fn supports_qualify(&self) -> bool {
+ false
+ }
+
+ fn requires_derived_table_alias(&self) -> bool {
+ true
+ }
Review Comment:
it's another bug. postgres must has an alias for derived table.
ERROR: subquery in FROM must have an alias.
I come across this error when I try to fix this issue.
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